# data[].attributes.body
the range of wavelengths or frequencies over which electromagnetic radiation extends.

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a wave of compression and rarefaction, by which sound is propagated in an elastic medium such as air.

# data[].attributes.body
Wave speed is the speed at which a wave travels.Wave speed is related to wavelength, frequency, and period by the equation wave speed = frequency x wavelength. The most commonly used wave speed is the speed of visible light, an electromagnetic wave. ... And that means that its speed can depend only on the medium.

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the rate at which something occurs or is repeated over a particular period of time or in a given sample.

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the maximum extent of a vibration or oscillation, measured from the position of equilibrium.

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the women's section of the US Naval Reserve, established in 1942, or, since 1948, of the US Navy.